Polyaspartic Acid Sodium Salt Industry Grade
Product Description
| Product Name |
Poly-L-aspartic acid 99% |
| CAS No. |
25608-40-6 |
| Purity |
99% |
| Appearance |
Powder/Liquid |
| Molecular Formula |
C4H7NO4 |
| EINECS No. |
/ |
PASP is a water soluble polymer, has good scale inhibition on calcium carbonate, calcium sulfate, barium sulfate, calcium phosphate, etc. Its scale inhibition rate for calcium carbonate is 100%. Moreover, PASP has dispersion and corrosion inhibition properties to metal equipment.
PASP is an alternative of phosphor-containing Water Treatment Chemicals, avoiding water system eutrophication and second pollution.
Product Specifications
Polyaspartic Acid Sodium Salt Solid/Powder
Polyaspartic Acid Sodium Salt Liquid/Solution
Specification
| Item |
Standard |
Test Results |
| Identification |
A.H-NMR:Comply with the structure |
Complies |
| |
B.LC-MS:Comply with the structure |
Complies |
| |
C.The IR spectrum of sample should be identical with that of reference standard; |
Complies |
| |
D.HPLC-ESI-MS
The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. |
Complies |
| Crystallinity |
meets the requirements. |
Complies |
| Loss on drying |
≤2.0% |
0.19% |
| Heavy metals |
≤10 ppm |
<10ppm |
| Water |
≤1.0% |
0.1% |
| Sulphated ash |
≤0.5%, determined on 1.0 g. |
0.009% |
| Related substances |
Unspecified impurities: for each impurity |
≤0.10% |
<0.10% |
| |
Total Impurity |
≤0.5% |
0.18% |
| Purity |
≥99.0% |
99.7% |
| Assay |
99.0%~101.0% (anhydrous substance). |
99.8% |
| Microbiological Analysis |
| Total plate count |
≤1000cfu/g |
Complies |
| Yeast and Moulds |
≤100cfu/g |
Complies |
| E. Coli. |
Absent |
Negative |
| Salmonella |
Absent |
Negative |
| S.aureus |
Absent |
Negative |
| Storage |
Preserve in well-closed, light-resistant and airtight containers. |
Complies |
Packing
In 25kgs or 250kgs drum
Contact Detalis:
Vanessa Zhao
Senior Business Manager
SHANDONG YURUN CHEMICAL CO.,LTD
Add: Yurun Building,Weifang City,Shandong Province,P.R.China.
Audited Supplier 
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